【Daily Question No. 331】2018.12.03
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【Daily Question No. 331】December 03, 2018: What are the hazards of too rapid preheating of the hot oil pump in a hydrogenation unit? The hot oil pump is preheated at a rate of 50°C per hour; the disadvantages of too rapid preheating include: (1) it has a significant impact on the pump’s service life; (2) uneven preheating of the pump’s components can lead to damage or malfunction; (3) leakage at the end-face seals, as well as at the flanges and covers. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below
1. Mechanical seal leakage 2. Pump body leakage 3. Flange leakage 4. Pump casing damage
There are several disadvantages to rapid preheating: (1) it may cause leakage at the end face seal and at the flange cover. (2) It can cause damage or malfunction to the pump’s components; (3) It will affect the pump’s service life.
The hot oil pump is preheated at a rate of 50°C per hour. The disadvantages of too rapid preheating are as follows: (1) it has a significant impact on the pump’s service life; (2) uneven preheating of the pump’s components can lead to damage or malfunction; (3) leakage may occur at the end-face seals, as well as at the flanges and covers.
①It will affect the service life of the pump； ②Causes damage or failure to the pump’s components ； ③It may cause leakage at the end face seal and at the flange cover.
Too rapid preheating can cause uneven heating of the pump shaft, leading to bending
1. Mechanical seal leakage 2. Pump body leakage 3. Flange leakage 4. Pump casing damage
There are several disadvantages to rapid preheating: (1) it may cause leakage at the end face seal and at the flange cover. (2) It can cause damage or malfunction to the pump’s components; (3) It will affect the pump’s service life.
①It will affect the service life of the pump； ②Causes damage or failure to the pump’s components ； ③It may cause leakage at the end face seal and at the flange cover.
The preheating rate of hot oil pumps is generally 50°C/h. Preheating too quickly has the following disadvantages: ① It can affect the pump’s service life； ②Causes damage or failure to the pump’s components ； ③It may cause leakage at the end face seal and at the flange cover.